The film's plot starts off following the story of the first book/radio series. However like every other adaptation of the material, it diverges sharply not too far in. This time, the divergence is far sharper than any before, but this was done intentionally by Adams himself (who thought of making Humma Kavula the Big Bad, the face-paddling scene, and the POV gun entirely on his own.) This film is also the farthest adaptation to date, even going so far as to have broad humor more akin to family films, and some American sensibilities, preventing a sequel based on Restaurant At The End Of The Universe to ever be produced.